Immune system sets 'tripwire' to protect against viruses

Scientists are opening new windows into understanding more about the constantly shifting evolutionary arms race between viruses and the hosts they seek to infect. Host organisms and pathogens are in a perennial chess match ...

Pillar-like molecules as biosensors for metabolites

Metabolites are organic molecules that take part in or are created during the biochemical reactions constantly taking place in an organism. For the human body, more than 110,000 metabolites have been identified. Metabolites ...

High-speed model for the fight against SARS-CoV2

To contain the SARS-CoV2 coronavirus and slow the spread of infections and the rising death toll, researchers and health professionals around the world are rapidly developing vaccines and medical drugs. But before these can ...

NASA chief warns Congress about Chinese space station

NASA chief Jim Bridenstine told lawmakers Wednesday it was crucial for the US to maintain a presence in Earth's orbit after the International Space Station is decommissioned so that China does not gain a strategic advantage.

Micro- and nanoplastics detectable in human tissues

Plastic pollution of land, water and air is a global problem. Even when plastic bags or water bottles break down to the point at which they are no longer an eyesore, tiny fragments can still contaminate the environment. Animals ...

Why does COVID-19 impact only some organs, not others?

In severe cases of COVID-19, damage can spread beyond the lungs and into other organs, such as the heart, liver, kidney and parts of the neurological system. Beyond these specific sets of organs, however, the virus seems ...

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